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name: "@tank/framer-motion" description: | Motion for React (formerly Framer Motion) animation mastery. Covers the complete API: motion component, AnimatePresence, layout animations, spring physics, scroll-linked animations, gestures, motion values, useAnimate, variants/orchestration, SVG animation, drag, performance optimization, LazyMotion code splitting, and accessibility (reduced motion). Includes production-ready recipes for page transitions, modals, staggered lists, shared element transitions, parallax, and interactive components. Synthesizes Motion.dev documentation (2025-2026), Nabors (Animation at Work), Head (Designing Interface Animation), Saffer (Microinteractions), Kowalski (Animations on the Web), and production patterns from Linear, Vercel, and Notion.

Trigger phrases: "framer motion", "motion/react", "motion component", "animate", "AnimatePresence", "exit animation", "layout animation", "layoutId", "shared layout", "spring animation", "spring physics", "useAnimate", "useScroll", "useMotionValue", "useTransform", "useSpring", "scroll animation", "parallax", "whileHover", "whileTap", "whileInView", "whileDrag", "gesture animation", "drag animation", "variants", "staggerChildren", "page transition", "modal animation", "enter animation", "exit animation", "keyframes", "motion value", "LazyMotion", "MotionConfig", "Reorder", "SVG path animation", "pathLength", "reduced motion", "animation performance", "layout animation gotcha", "spring preset", "tween", "easing", "stagger", "orchestration", "animate presence", "motion react", "framer-motion to motion", "motion library react"

Motion for React

Core Philosophy

1. Springs over tweens — Spring physics feel natural because they incorporate velocity. Default to springs for movement (x, y, scale), tweens for visual properties (opacity, color).
2. Motion values over React state — Motion values update the DOM directly without re-renders. Use them for anything that changes rapidly (scroll, mouse, continuous animation).
3. Declarative first, imperative when needed — Use animate, whileHover, variants for 90% of work. Reach for useAnimate only for sequences, timeline scrubbing, or event-driven triggers.
4. Layout animations are magic — The layout prop and layoutId handle FLIP animations with scale-distortion correction. Use them for any position/size change.
5. Respect the user — Always check useReducedMotion(). Replace movement with opacity-only transitions when reduced motion is preferred.

Quick-Start

"How do I animate something?"

import { motion } from "motion/react"

<motion.div
  initial={{ opacity: 0, y: 20 }}
  animate={{ opacity: 1, y: 0 }}
  transition={{ type: "spring", stiffness: 400, damping: 30 }}
/>

-> See references/core-animation-api.md

"How do I animate exit/removal?"

Wrap conditionally rendered elements in AnimatePresence:

<AnimatePresence mode="wait">
  {show && <motion.div key="item" exit={{ opacity: 0 }} />}
</AnimatePresence>

-> See references/core-animation-api.md

"How do I tune spring feel?"

Feel	Config	Use Case
Snappy	stiffness: 400, damping: 30	Buttons, toggles
Bouncy	stiffness: 300, damping: 12	Notifications, playful UI
Smooth	stiffness: 200, damping: 20	Dialogs, drawers
Gentle	stiffness: 120, damping: 14	Background, subtle shifts

-> See references/transitions-and-springs.md

"How do I do shared element transitions?"

Use layoutId to morph between different components:

<motion.div layoutId={`card-${id}`} />

-> See references/layout-animations.md

"How do I animate on scroll?"

const { scrollYProgress } = useScroll()
const opacity = useTransform(scrollYProgress, [0, 1], [0, 1])

-> See references/scroll-and-viewport.md

"I need a complete animation recipe"

Copy-paste production patterns for modals, page transitions, staggered lists, button states, drag-to-dismiss, SVG drawing, and more. -> See references/production-recipes.md

Decision Trees

Which Transition Type?

Property Type	Default	Override To
Physical (x, y, scale, rotate)	Spring	Tween only if duration matters
Visual (opacity, color, filter)	Tween (0.3s)	Spring for bouncy feel
Layout (layout prop)	Spring	Tween for controlled timing
Exit animations	Same as animate	Faster duration (0.15-0.2s)

Which Animation Approach?

Need	Approach	API
Simple state change	Declarative	animate={{ }}
Gesture feedback	Declarative	whileHover, whileTap
Enter/exit the DOM	Declarative	AnimatePresence + exit
Coordinated children	Declarative	variants + staggerChildren
Position/size change	Declarative	layout / layoutId
Scroll-linked	Reactive	useScroll + useTransform
Complex sequence	Imperative	useAnimate
Continuous/high-freq	Reactive	useMotionValue

When NOT to Use Motion

Situation	Use Instead
Simple hover color change	CSS transition
Single property opacity fade	CSS transition
Continuous keyframe loop (non-interactive)	CSS @keyframes
Canvas/WebGL animation	Three.js / PixiJS
60fps scroll effects on 100+ elements	CSS scroll-timeline

Import Note

The library was renamed from framer-motion to motion. Use the new import:

// Correct (v11+)
import { motion, AnimatePresence } from "motion/react"

// Legacy (still works but deprecated)
import { motion, AnimatePresence } from "framer-motion"

Reference Files

File	Contents
references/core-animation-api.md	motion component, animate/initial/exit, AnimatePresence, keyframes, variants, orchestration, useAnimate, animatable values
references/transitions-and-springs.md	Spring physics (stiffness/damping/mass vs bounce/duration), tween easing, inertia, spring presets, tuning guide, orchestration timing
references/layout-animations.md	layout prop, layoutId, LayoutGroup, shared element transitions, Reorder component, FLIP correction, common gotchas
references/gestures-and-drag.md	whileHover/whileTap/whileFocus/whileDrag/whileInView, drag constraints, useDragControls, event propagation, accessibility
references/scroll-and-viewport.md	useScroll, scroll-linked animations, parallax, progress bars, useInView, viewport options
references/motion-values-and-hooks.md	useMotionValue, useTransform, useSpring, useVelocity, useMotionTemplate, useMotionValueEvent, useAnimate, useAnimationFrame, useReducedMotion
references/production-recipes.md	Page transitions, modal animations, staggered lists, tab switchers, accordions, SVG path drawing, drag-to-dismiss, button states, shared elements
references/performance-and-accessibility.md	GPU acceleration tiers, LazyMotion code splitting, MotionConfig, bundle size, reduced motion, animation duration guidelines, anti-patterns, SSR/RSC